THIS is the moment Tory frontbencher Liz Truss rolled her eyes at arch-Remainer Lord Adonis after he made his pitch for a second referendum on Brexit next summer.

Conservative MP Liz Truss rolled her eyes, stuck her tongue in her cheek and shook her head in disbelief as the arch-Remainer Labour peer argued for an extension to the Article 50 Brexit negotiation period in order to hold a so-called ‘people’s vote’.

Lord Adonis complained about the progress of Brexit negotiations, admonishing Brexit Secretary Dominic Raab for asking for some “leeway” over a final deal.

He told LBC: “We were told it was going to be off to the European Council at the end of October, but now the Brexit Secretary Dominic Raab has said he may need some leeway.

“Is leeway one month, two months, three months? Maybe Liz Will tell us.

After blinking in disbelief, Ms Truss replied: “It was made very clear to people during the referendum that this would decide whether or not we left. It wasn’t a contingent vote on what deal we would get it was a deal on whether we would leave.

“Earlier Andrew talked about, do we want to stay in some institutions. It’s pretty clear to me that if you’re leaving the European Union, you’re leaving those institutions. That includes the single market, that includes the customs union.”

The Labour peer has long been a supporter of a second Brexit referendum and has become a leading figure in the People's Vote campaign.

Theresa May has ruled out a second referendum amid mounting pressure from Brexit hardliners voicing concerns about her Chequers plan, with 20 rebel MPs pledging to wreck her blueprint.

Leading Brexiteers, including former ministers Priti Patel and Iain Duncan Smith, have now joined Stand Up 4 Brexit - a group which campaigns to ditch all EU negotiations to date.

Stand Up 4 Brexit supporters, who also include leading Boris Johnson ally Conor Burns, pledge to fight plans to keep EU rules on British goods, the Northern Ireland “backstop” plan and free movement.

The latest move sees Mrs May come under tremendous pressure from all sides with European Union chief negotiator rejected her plans as “illegal, insane and impractical”.